Grain-cleaner



(No Model.)

J. BURKHOLDER.

GRAIN CLEANER.

No. 272,'205.- Patented-1 613131383.

N, PETERS, Phqmumo n her. wumn mn, n. c.

UNITED STATES PATENT UEEICE.

JOHN BURKHOLDER, OF CENTREBURG,'OHIO.

GRAIN-CLEANER.

SPECIFICATION forming part of Letters Patent No. 272,205, dated February 1 3, 1883,

Application filed October 16, 1882.

To all WILOlitit may concern Be it known that 1, JOHN BURKHOLDER, of (Jentreburg, in the county of Knox and State of Ohio, have invented a new and useful Improvement in Grain-Cleaners; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to improvements in machines for cleaning and scouring grain and preparing it for milling; and the invention consists in the peculiar construction of apparatus for scouringand cleaning the grain after it has passed through the separator, which devices can be used in connection with any desired kind of separator, although preferably with that shown and described in this application.

1n the accompanying drawings, Figure 1 is a section through the riddles with the plates of the scouring-cylinders removed. Fig. 2 is a longitudinal section through the scouring cylinder. Fig. 3 is a detached perspective of one of the segments of the scouring-cylinder. Figs. 4 and 5 represent details.

The .machine is supported upon a square frame-work composed of suitable bed and corner pieces and braces, it being necessary to give firmness and solidity in order to properly maintain and support the shafting and movable parts. i

Supported on top of the main frame-work is a box or casing, A, of rectangular oblong form, and within this box are arranged riddles l 1, made preferably of zinc, and having perforations placed closely together throughout their extent. The riddles may be so placed that they are inclined or at an angle to each other, and beneath the inclined riddle a solid plate, g, may be placed, to carry off the dust falling through the perforations. The casing A is suspended upon spring-arms 2 2, which yield sufticientlyto permit the casing and riddles to be vibrated by the movement of a cam on a shaft, 3, which operates a pitman, 4, secured to the lower side of the casing A. A chute, 5, connects the casing A with the cylinder B of the scouring mechanism, which is adapted to be secured rigidly in a suitable framework, and is preferably composed of two half-round sections of boiler-iron or other suitable material, bolted together at the joints and firmly secured .in the frame.

(No model.)

B is a shaft passing through the cylinder B, having on its outer end a pulley by which motion is transniitted'from any suitable power, preferably the driving-shaft of the separator. Thebottom'of the cylinderB is perforated with numerous fine holes throughout its whole ex-' tent. Secured to the top of this cylinder, at or near one end thereof, is a suitable opening for the admission of the grain. I have shown in the drawings an inclined chute, 0, adapted to communicate with the interior of the separator below the grain-riddle.

D represents the inner cylinder, which is of considerably less diameter than the cylinder B, and is fixed rigidly upon the shaft'B.

Secured upon the cylinder 1) are spiral ribs 0 0, extending throughout its extent, the pitch or inclination being exceedingly slight, as shown. This spiral is formed from a series of cast segments, (1 d, separately illustrated in Fig. 3.

Each segment consists of a riu1,f, and flange g, extending at right angles thereto,'-and integral pins h, projecting at right angles from the flange g and arranged close together upon its face. When complete the surface of the cylinder consists of a spiral groove extending fromend to end and broken by means of the pins h.

In the upper interior side of the stationary cylinder, and extending preferably throughout its length, is secured a brush, f, which may be composed of stiff bristles, and the parts are so arranged that the outside of the flanges of the inner cylinder run nearly in contact with the said brush. At the opposite end-of the cleaning-cylinder from the chute 5 is a discharge chute or spout,'6, communicating with a second cleaning-cylinder, F, constructed like that just described, but having the spiral ribs of an opposite pitch, so that the grain is carried through it in areverse direction and subjected to the action of the cleaning-brush, the dust dropping through the perforationsin the bottom into a trough, Gr, supported in theframe directly below the cylinder last mentioned. This trough has an outlet at one end, and may be slightly inclined to that end, and provided with a suitable screw or equivalent device for discharging the dust. The grain, after passing to the end of the cylinder F, passes by a spout, 9, into a cylinder, H, having a spiral the line I, leading to the exhaust-fan J. Here pins secured to such ribs, projecting horizonany dust that may remain is carried up by the tally across the path between them, the said 15 exhaust and discharged, while the cleaned outer cylinder being provided withproperinlet 5 grain falls through the fine, and is preferably and outlet devices. substantially as described. carried directly to the burrs. In testimony whereoflhave signed ngyname Having thus fully described my in vcntion, to this specification in the presence of two subwhet I claim is Y scribing witnesses.

conveyer. This cylinder communicates with tating inner cylinder having spiral ribs, and In a grain-scouring machine, the combina- I JOHN BURKHOLDER.

10 tion of the fixed ca e or shell having numer- Vitnesses:

ons perforations in its bottom, and provided J. B. WRIGHT, at the top with a stationary brush, and a ro- D. G. LEWIS. 

